Here you can find the source of addMonthMark(int month, int add)
public static int addMonthMark(int month, int add)
//package com.java2s; /**/*from w w w . j ava2 s . com*/ * Copyright 2013-present febit.org (support@febit.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static int addMonthMark(int month, int add) { int m = month % 100 + add; if (m > 0 && m <= 12) { return month + add; } int y = month / 100; int totalMonth = y * 12 + m - 1; y = totalMonth / 12; m = totalMonth - y * 12 + 1; return y * 100 + m; } }